JPH01173789U - - Google Patents
Info
- Publication number
- JPH01173789U JPH01173789U JP7051688U JP7051688U JPH01173789U JP H01173789 U JPH01173789 U JP H01173789U JP 7051688 U JP7051688 U JP 7051688U JP 7051688 U JP7051688 U JP 7051688U JP H01173789 U JPH01173789 U JP H01173789U
- Authority
- JP
- Japan
- Prior art keywords
- display
- address
- window
- comparator
- stores
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の実施例１のブロツク図であり
、第２図は実施例２のブロツク図である。
１……ウインドウ表示データＲＡＭ、２……ウ
インドウ表示アドレス・テーブル、３……書き込
み制御回路、４……ベース画面表示アドレス発生
回路、５……出力データ生成回路、６……比較器
、７……演算回路、８……比較器。
FIG. 1 is a block diagram of Embodiment 1 of the present invention, and FIG. 2 is a block diagram of Embodiment 2 of the present invention. DESCRIPTION OF SYMBOLS 1... Window display data RAM, 2... Window display address table, 3... Write control circuit, 4... Base screen display address generation circuit, 5... Output data generation circuit, 6... Comparator, 7... ... Arithmetic circuit, 8... Comparator.
Claims (1)
コントローラにおいて、ウインドウ表示のための
表示データを格納するＲＡＭと、ウインドウ表示
を行うべきベース画面上の位置を示す表示アドレ
スを格納するテーブルと、ベース画面の表示アド
レスを発生する回路と、テーブルの値と表示アド
レス発生回路の出力する表示アドレスとを比較す
る比較器とを有し、比較器の出力を外部表示ＲＡ
Ｍを表示コントローラが開放したことを示す信号
とすることを特徴とする表示コントローラ。 In a display controller with a hardware window display function, there is a RAM that stores display data for window display, a table that stores a display address that indicates the position on the base screen where the window display should be performed, and a display address of the base screen. and a comparator that compares the value of the table with the display address output from the display address generation circuit, and outputs the output of the comparator from the external display RA.
A display controller characterized in that M is a signal indicating that the display controller is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7051688U JPH01173789U (en) | 1988-05-27 | 1988-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7051688U JPH01173789U (en) | 1988-05-27 | 1988-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01173789U true JPH01173789U (en) | 1989-12-11 |
Family
ID=31295757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7051688U Pending JPH01173789U (en) | 1988-05-27 | 1988-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01173789U (en) |
-
1988
- 1988-05-27 JP JP7051688U patent/JPH01173789U/ja active Pending
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